SPONGIjE. 
8 S'pong. 
Yejdovsky (26) reduces the European species of Spongilla to five — S. 
lacustris , jordanensis , fiuviatilis , mulleri , and erinaceus ; he recognizes 
one genus, Spongilla , which he divides into three subgenera — Euspon- 
gilla , Ephydatia , and Trochospongilla. 
Winkler (32) expresses his views on the relations of the genera 
Pachastrella, Stelletta , and Geodia , and the position of his new species, S. 
transiens , in the following scheme: — 
Geodia. 
Stelletta geodiha , o.s. 
Stelletta discophora, o.s. ^ 
Stelletta dorsigera , o.s. > Stelletta transiens. 
Stelletta. J 
Pachastrella. 
New Genera and Species. 
Calcispongia:. 
Leucetta clathrata , Carter, (1) S.W. coast of Australia, characterized 
by peculiar large triradiate spicules and a solid vermiculate fibrous 
reticulation. 
Cekaospongl®. 
Aplysylla violacea , Lendenfeld, (11) S. Australia; Goscinoderma (g. n.) 
lanuginosum, Carter, (5) Freemantle, S.W. Australia ; Dendrilla (g. n.) 
rosea and aero'phoba, Lendenfeld, (11) S. Australia; Velinea (g. n.) 
gracilis, sp. n., Yosmaer, (30) Mediterranean. 
MoNAXONIDiE. 
Renieridas. Phlceodictyon (g. n.) singaporense ) Carter, (5) Singa- 
pore. 
Desmacidin^j. Hymerayhia forceps , Waller, (31) Torbay, England ; 
Monanchora (g. n.) clathrata , Carter, (5) Freemantle, S.W. Australia. 
Echinonemata. Ectyon cylindricus, Carter, and E. flabelliformis } 
Carter, (5) W. Indies ; E. mauritianus, Carter, (5) Mauritius ; Ectyonop- 
si8 (g. n.) ramosus , Carter, (5) S. Australia; Leucophlccus (g. n.) com- 
pressus , Carter, (5) Swan River, W. Australia ; L. massalis, Carter, (5) 
Freemantle, S.W. Australia ; Phahellia ramosa , Carter, (5) Sydney, S. 
Australia ; Phycopsis (g. n.) fruticosa, Carter, (5) Yan Diemen’s Land ; 
P. hirsuta , Carter, (5) S. Australia ; Ptilocaulis (g. n.) gracilis, Carter, 
(5) W. Indies ; P. rigidus, Carter, (5) Australia (?). 
Spongillidal. Potamolepis (g. n.) chartaria , leubnitzia , and pechuelis, 
Marshall, (13) from the Congo ; Spongilla bohmi, Hilgendorff, (10) 
River Ugalla, near Lake Tanganyika; Spongilla rhenana and S. mira- 
bilis , Retzer, (23) Germany ; Ephydatia amphizona , Yejdovsky, (28). 
